nav {
  display: flex;
  width: 100%;
  height: 4rem;
  position: fixed;
  border-top: 1px solid #999;
  bottom: 0;
  left: 0;
  text-align: center;
  span {
    display: inline-block;
    width: 19%;
    height: 4rem;
    line-height: 1.35rem;
    text-align: center;
    color: #666;
    p:nth-child(2n-1) {
      margin-top: .5rem;
    }
    p:nth-child(2n) {
      font-size: .2rem;
    }
    .zj-message {
      display: inline-block;
      width: 1.7rem;
      height: 1.7rem;
      background: url("../../assets/images/foot/home.png") 0% 0% no-repeat;
      background-size: contain;
    }
    .zj-member {
      display: inline-block;
      width: 1.7rem;
      height: 1.7rem;
      background: url("../../assets/images/foot/forum.png") 0% 0% no-repeat;
      background-size: contain;
    }
    .zj-home {
      display: inline-block;
      width: 4.5rem;
      height: 4rem;
      background: url("../../assets/images/foot/click.png") 0% 0% no-repeat;
      background-size: contain;
    }
    .zj-photo {
      display: inline-block;
      width: 1.7rem;
      height: 1.7rem;
      background: url("../../assets/images/foot/message.png") 0% 0% no-repeat;
      background-size: contain;
    }
    .zj-myself {
      display: inline-block;
      width: 1.7rem;
      height: 1.7rem;
      background: url("../../assets/images/foot/myself.png") 0% 0% no-repeat;
      background-size: contain;
    }
  }
  span:nth-of-type(3) {
    padding-top: .4rem;
    width: 24%;
  }

}

.active {
  color: #0ABB06;
  outline: none;
  .zj-message {
    display: inline-block;
    width: 1.7rem;
    height: 1.7rem;
    background: url("../../assets/images/foot/homes.png") 0% 0% no-repeat;
    background-size: contain;
  }
  .zj-member {
    display: inline-block;
    width: 1.7rem;
    height: 1.7rem;
    background: url("../../assets/images/foot/forums.png") 0% 0% no-repeat;
    background-size: contain;
  }
  .zj-home {
    display: inline-block;
    width: 4.5rem;
    height: 4rem;
    background: url("../../assets/images/foot/clicks.png") 0% 0% no-repeat;
    background-size: contain;
  }
  .zj-photo {
    display: inline-block;
    width: 1.7rem;
    height: 1.7rem;
    background: url("../../assets/images/foot/messages.png") 0% 0% no-repeat;
    background-size: contain;
  }
  .zj-myself {
    display: inline-block;
    width: 1.7rem;
    height: 1.7rem;
    background: url("../../assets/images/foot/myselfs.png") 0% 0% no-repeat;
    background-size: contain;
  }
}
